Dust-receptacle.



T. E. MITCHELL.

DUST REGEPTAGLE.

APPLIGATION FILED IEB.19,1912.

1,038,41 3. Patented Sept. 10,1912.

THOMAS E. MITCHELL, OF MEADERVILLE, MONTANA.

i DUST-BECEPTACLE.

Specification oi Letters Patent.

' Patented Sept. 10, 1912.

Application filed February 19, 1912 Serial No. 673,547.

To all whom it may concern:

Be it known that I, THOMAS E. MITCHELL, a citizen of the United States,and a resident of Meaderville, in the county of Silverbow and State ofMontana, have invented a new and ImprovedDust-Receptacle, of which thefollowing is a full, clear, and exact description.

My invention relates generally to dust receptacles and more particularlyit is directed to a device especially intended for use with pneumatichammer drills.

to provide a new and improved receptacle of simple construction and fewparts adapted to be positioned adjacent a hole which is being drilledwhereby the dust and other a material set free by the drill will becollected, thereby preventing it from circulating in the atmosphere.

Reference is to be had to the accompanying drawings forming a part ofthis specification, in which similar characters of reference denotecorresponding parts in all the views, and in which- Figure 1 is a sideView of the device in operative position; Fig. 2 is a partial verticalsectional view thereof; Fig. 3 is a sectional view on the line 33 ofFig. 2.

The receptacle is shown applied to any suitable machine 1 having a drill2 extending therefrom, the drill entering a hole 3 in a wall or mass ofrock 4, the machine being operated in any suitable manner.

ring-6 adjacent one end on which the flex ible material 5 is fastened,preferably bymeans of a cord or wire 7 The shank of the drill extendsthrough the interior of the flexible receptacle, the other end of thereceptacle being preferably provided with a metallic ring 8 to which theend of the material is secured in any desired manner, as by a cord orwire 9. Secured to the ring 6 and preferably on the inner side thereofare a plurality of spring members'o-r fingers 10 each of which isprovided with a plurality of projecting portions 11, these portionsbeing preferably integral with the spring members and conical information. The inner ends of the fingers are secured to the ring in anydesired manner, the preferred formation being by means of rivets 12. Itis to be noted that the diameter of the ring fi is substantially greaterthan the The re ceptacle ltself comprises a flexible container- 5 havingopen ends, there being a metallic distance between diametricallyopposite fingers 10, this result being obtained by ottsetting or bendingthe ends 13 of thefingers adjacent the ring. Referring particularly toFig. 1, 1t will be noted that such construction permits the ring 6 to bebroughl. closely adjacent the material 4 which is being drilled, thehole 3 being formed being of less diameter than the ring whereby thedust and particles resulting from drilling are caught in the receptacle5. By making the fingers 1O springy they may be engaged in The principalobject of my invention isopenings 3 of different sizes, the projections11 engaging the inner wall of the opening whereby the receptacle issecurely held in position. Whatever the size of the receptacle or thediameter of the ring, or the distances'between the fingers 10, thesefingers are so positioned that they afford ample space for the drill 2in working.

Extending laterally of the flexible receptacle 5 is an outlet tube orchute 14 extending for any suitable distance and preferably able rings16 to which the flexible material of the tubeis secured by means ofbands of string or wire 17. In positioning the different rings 6', 8,and 16, in engagement with the flexible material of the device, it maybe desirable to provide the outside of each of the rings with a recessor channel so that, when the wires or cords 7, 9, 17 are engaged withthe rings, they will be securely held in position because of thematerial being forced into the channels.

The end .1 of the drilling machine or hammer to which the drill 2 isattached is in close engagementwith the end portion of the flexiblecontainer 5, such firm and close engagement being brought about particularly by the construction shown especially in Fig. 3. Extending aroundthe side of the container is a piece of rope or similar flexiblematerial 18 having a ring 19 formed at one end thereof, the rope passingthrough a suitable opening 'in the material 5, the opening being formedin portions of the material folded adjacent each other, as at 20, the

opening 21 being substantially of the same diameter as the rope 18, thediameter of the opening 22 which communicates with the opening 21 beingof greater diameter than the rope or similar device and substantiallyequal in diameter to the knots or similar enlarged portions 23 providedon the rope 18. Secured to the end of the metallic fastener is a shortrope or equivalent device 24 having a ring 25 at its end engaging thisfastening device, the purpose of the short rope being to provide aconvenient handle or grip when placing the receptacle in position on thedrill holder. tudinally of the end of the flexible container 5 and for asuitable distance are a number of corrugations or raised portions 26,each of which is formed by placing a quantity of suitable material 27adjacent the inside of the flexible container 5 and securing a secondflexible piece 28 thereto, the purpose of these corrugated or raisedportions being to provide a plurality or of the short rope 24 andpulling on the parts in opposite directions, the knotted or enlargedportions 23 of the rope 18 passing through the enlarged opening 22 inthe fastening device, the rope being then passed into engagement withthe fastener in the smaller opening 21, the 'knot 23 engaging theoutside of the fastener adjacent this smaller opening and preventingloosening of the rope 'so that the parts are held firmly in engagement,as shown particularly in Fig. 1.

As the drilling proceeds, the dust and other particles resultingtherefrom fall into the flexible container 5 and thence down- Extendinglongiwardly through the outlet or chute 14 and finally collect in thebag or barrel 15. Such a construction affords a device especially usefulin underground drilling operations. It is advantageous to keep the airas clear as possible, it being obvious that all dust resulting from thedrilling will be collected in the barrel or ba 15. The use of the springor resilient ngers 10 permits the device to be readily inserted inposition for use, the conical projections on the fingers affording afirm engagement for the fingers with the inner wall of the opening sothat the outfit when once set up is firmly held in position.

Having thus described my invention, I claim as new, and desire to secureby Letters Patent:-

A device of the class described comprising a flexible container havingopen ends, rings secured to the flexible material adjacent the ends, onering being provided with a plurality of resilient fingers extendingtherefrom, each of the fingers being provided with a plurality ofprojections, the fingers being adapted to enter a hole with theprojections thereon in engagement with the side wall of the hole wherebythe container is held in position, a rope carried adjacent the otheropen end of the container, a number of corrugations on the flexiblematerial with which the rope is adaptedto engage whereby the end portionof the container may be held in close engagement with the drill carryingdevice, an outlet chute carried by the container, the said outlet chutebeing adapted to communicate with a receptacle whereby dust or othersubstances entering the container from the said hole may be collected inthe receptacle.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

THOMAS E. MITCHELL.

Witnesses WILLIAM CARPENTER, H. E. VANSTANE.

